Please help one problem I’ll give brainliest..

Please Help One Problem Ill Give Brainliest..

Answers

Answer 1

Answer:

Your answer is infinitely many solutions

Step-by-step explanation:

To use elimination you have to get one of the variables to be the opposite of each other, so here you would do:

-2(2x+y = 7)

   4x+2y= 14

You multiply the top by -2 to get the opposite of 2y, which is -2y. This in turn multiplies everything by -2 on the top solution giving us the top equation below.

  -4x-2y = -14

+ 4x+2y = 14

--------------------

      0 = 0

If you add those 2 solutions then you get 0 = 0, which is infinitely many solutions


Related Questions

Angelo drew a scale model of the flagpole at school. If the actual pole is 15 feet tall, and his drawing is 10 inches tall, what scale did he use?

Answers

Answer: [tex]\frac{2}{3}[/tex]

Step-by-step explanation:

Given

Angelo drew a model with his drawing length 10 inches tall

The actual pole length is 15 feet tall

drawing scale is the ratio of drawing length to the actual length i.e.

[tex]\Rightarrow \text{Scale used l=}\dfrac{10}{15}\\\\\Rightarrow l=\dfrac{2}{3}[/tex]

The total fees for the high school play are
$250. Tickets to the play cost S5 for
students and S8 for nonstudents. Write a
linear inequality that describes the number
of student and nonstudent tickets that nccd
to be sold for the drama class to be able to
pay the fees.

Answers

Answer:

250[tex]\leq[/tex]5s+8ns

Step-by-step explanation:

the total fees are $250, meaning they would still be able to make the fees if they'd oversell the tickets.

each tickets is $5 for students; hence the s

each tickets is $8 for nonstudents; hence the ns

you may replace the variable with anything you'd like or what fits the direction.

The inequality describes the number of student and non student tickets that to be sold for the drama class to be able to pay the fees will be 5x+8y≥250

What is inequality?

A relationship between two expressions or values that are not equal to each other is called inequality.

Given that, The total fees for the high school play are $250. Tickets to the play cost $5 for students and $8 for non students.

Let the cost of students be x and that of non student's be y.

According to question,

5x+8y≥ 250

Hence, The inequality describes the number of student and non student tickets that to be sold for the drama class to be able to pay the fees will be 5x+8y≥250

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Which sequence is an example of an arithmetic sequence?

Question 9 options:

5, 10, 20, 40, 80, …


5, 10, 15, 20, 25, …


–3, –6, –18, –54, …


20, 10, 5, 2.5, …

Answers

Answer: the second sequence.

25- 20= 20-15=15-10=10-5.

From this we can see that the common difference is 5

Step-by-step explanation:

Which set of polar coordinates describes the same location as the
rectangular coordinates (3,0)?
A. (-3,270)
B. (3,0°)
C. (3,180)
D. (3,90°)

Answers

Answer:

B.(3.0)

Step-by-step explanation:

took the test

PLEASE HELP ME!!!!!!!!

Answers

Answer:

a) = -8

b) 1 - (-7) = 8

b) -7 - 1 = -8

c) for both they are still the same answer so  

[1- (-7)] = 8

[-7 - 1] = -8

I'm pretty sure these are the answers hope this helped

Step-by-step explanation:

Tickets for a baseball game sell for $3. One hundred fifty were sold in advance. The stands has 400 seats.
Let A be the total amount of ticket sales, in dollars, including the tickets sold at the door. Which statement best decribes A?
a. A ≥ 1,200
b. 450 ≤ A ≤ 1,200
c. A ≥ 450
d. A ≤ 900

Answers

Answer:

b. 450 ≤ A ≤ 1,200 is a required answer.

One fifty sold

Price

150(3)$450

Total seats=400

Total price

400(3)$1200

So

450≤A≤1200 is correct

how to you divide denominators by numerators?

Answers

What he are she said.

I need help please , I’m so confused please

Answers

Answer:

628.32 or 628.31853071796

Step-by-step explanation:

V=πr²h or Volume equals pi r squared times h

V=pi*10²*2

find the area of the shaded region. Use 3.14 for pi

Answers

Answer:

This shaded region is consisted of 2 shapes: a right triangle and a semi-circle. To find the overall area, we must first find the are of the 2 shapes and add them together.

Step-by-step explanation:

1. Find the area of the right triangle:

a = 14, b = 2r = 8cm

A1 = ab/2 = 112/2 = 56cm²

2. Find the area of the circle:

r = 4 cm

A2 = πr² = 3.14 × 4² = 50.24cm²

3. Divide the area of the circle to get the area of the semi-circle:

A3 = A2/2 = 50.24/2 = 25.12cm²

4. Add the areas of the right triangle and the semi-circle together:

A1 + A3 = 56 + 25.12 = 81.12cm²

what is the answer to this?

Answers

Answer:

54mm

Step-by-step explanation:

(30 POINTS) Which function is represented by this graph?



A.
f(x) = -|x − 1| + 8
B.
f(x) = -|x − 8| + 1
C.
f(x) = -|x + 8| − 1
D.
f(x) = -|x + 1| − 8

Answers

Answer:

A.

Step-by-step explanation:

x-1 moves the graph to the right 1 and + 8 moves it up 8

this puts the vertex at (1,8) and the negative infront  of the x makes the graph point down like it is.

The function represented by the graph is : f(x)=-|x-1|+8

The correct option is (A).

What is graph?

A graph is a mathematical diagram which shows the relationship between two or more sets of numbers or measurements.

If we look at the graph, only the portion x-1 makes to move the graph to the right 1 and moves it up 8 which makes the coordinate (1,8).

Also, the negative at the front of x makes graph to move downwards.

Hence, the graph represented the function : f(x)=-|x-1|+8

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What will the width of the paper need to be ?

Answers

C - you take your 55 and 11 and divid and get 5.

Answer:

5

Step-by-step explanation:

l * w = area

if length is 11

and area = 55

then:

w * 11 = 55

isolate the variable

55/11 = 5

then width = 5

Convert the following degrees into radians: 75°

Answers

Answer:

1.309 I just I don't know

7100 dollars is placed in an account with an annual interest rate of 7.75%. How much will be in the account after 30 years, to the nearest cent?

Answers

Answer:

$66,646.40 is the answer

Step-by-step explanation:

Plz don’t report me I’m just trying to do my homework like y’all 3000

The probabilty that a student owns a car is 0.65 the porbability that a student owns a compuer is 0.82 the probability that a student owns both is 0.55what is the probability that a student owns both and what is the probability that a student owns none

Answers

Question:  The probability that s student owns a car is 0.65, and the probability that a student owns a computer is 0.82.

a. If the probability that a student owns both is 0.55, what is the probability that a randomly selected student owns a car or computer?

b. What is the probability that a randomly selected student does not own a car or computer?

Answer:

(a) 0.92

(b) 0.08

Step-by-step explanation:

(a)

Applying

Pr(A or B) = Pr(A) + Pr(B) – Pr(A and B)................. Equation 1

Where A represent Car, B represent Computer.

From the question,

Pr(A) = 0.65, Pr(B) = 0.82, Pr(A and B) = 0.55

Substitute these values into equation 1

Pr(A or B) = 0.65+0.82-0.55

Pr(A or B) = 1.47-0.55

Pr(A or B) = 0.92.

Hence the probability that a student selected randomly owns a house or a car is 0.92

(b)

Applying

Pr(A or B) = 1 – Pr(not-A and not-B)

Pr(not-A and not-B) = 1-Pr(A or B) ..................... Equation 2

Given: Pr(A or B)  = 0.92

Substitute these value into equation 2

Pr(not-A and not-B) = 1-0.92

Pr(not-A and not-B) = 0.08

Hence the probability that a student selected randomly does not own a car or a computer is 0.08

PLEASE HELP ASAP!! ILL GIVE BRAINLIST!

Answers

B or c not sure so I just would say B because well yeah

In the triangle ABC
are drawn two sides
of it, BB1 and AA1.
Those half-edges
intersect at point O.
What is the length of
the semicircular BB1
if B10 = a cm?

Answers

Answer:

3a

Step-by-step explanation:

What we have as the point O refers to the centroid of the triangle

The centroid splits the distance between the opposite vertex and the middle of the side length that faces it into two; with the longer side being twice the length of the shorter

So what we have here is that;

B1O is half the length of BO

So, if B1O is a cm, BO would be 2a

So we have the entire side length measure as;

a + 2a = 3a

I NEED HELP WITH THIS EQUATION

Answers

Answer:

Hello! answer: 2/5

Step-by-step explanation:

3 ÷ 7 = 0.428571428571

2 ÷ 5 = 0.4

Therefore 3/7 is bigger then 2/5 Hooe that helps!

graph the inequality 3x- 6≤ -3

Answers

Answer:

x≤ 1

Step-by-step explanation:

3x-6≤ -3

+6

3x≤ 3/3

The volume of a​ cone-shaped hole is 25 pi ft cubed . If the hole is 3 ft​ deep, what is the radius of the​ hole?

Answers

Answer:

5ft

Step-by-step explanation:

According to the scenario, computation of the given data are as follows,

Volume = 25π ft cubed

Depth = 3 ft

So, we can calculate the radius by using following formula,

V = 1/3 ×π ×radius squared×depth

25π = 1/3×π×radius squared ×3

Radius squared = 25

Radius = √25

Radius = 5 ft

Hence the radius of the hole is 5 ft.

help me pls, i dont understand​

Answers

Answer:

2

Step-by-step explanation:

to find the slope you do rise over run (2/1)

the answer is -2, 1 because the dots are aligned on the numbers

Given a sphere with a diameter of 10 cm, find its volume to the nearest whole
number
A. 4187 cm
B. 393 cm
C. 167 cm
D. 524 cm

I’m confused

Answers

Answer:

d

Step-by-step explanation:

D I think.......not sure

Gcf difference of square (trinomials (xmethod)

Help with math problem

Answers

9514 1404 393

Answer:

  A) difference of squares

  B) GCF

  C) trinomials (X method)

Step-by-step explanation:

When a binomial is a difference of squares, factoring using the "difference of squares" method is appropriate.

The first binomial is ...

  (2x)² -5² . . . . . a difference of squares

  = (2x -5)(2x +5)

__

When the binomial is not a difference of squares, but there is a common factor, then the GCF method is appropriate.

  2x³ -4x² = 2x²(x -2) . . . . . GCF method

__

When the expression is a trinomial, often the X method can work for factoring it.

  x²-5x +6 . . . . 2 numbers are needed that sum to -5 and are factors of 6

  6 = (-2)(-3), so the factorization is (by X method)

  (x -2)(x -3)

What is 4/11 simplified

Answers

Answer:

4/11 is already simplified as much as it can be in fraction form. as a percent its 36.3636%

Step-by-step explanation:

The simplified expression of 4/11 is 4/11

How to simplify the expression

From the question, we have the following parameters that can be used in our computation:

4/11

This means that we divide 4 by 11

So, we have the following representation

4/11

In the above, we have

The numerator 4 is less than the denominator 11

This means that the expression is already simplified

Hence, the simplified expression is 4/11

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The volume of a rectangular prism is 945 ft. If it has a length of 15 ft and a width of 9 ft, what is
its height?

Answers

Answer: 7ft

Step-by-step explanation:

Rectangular Prism = L x W x H

135H = 945

H = 7 ft

The mean of six numbers is 184.2. The mean of five of the numbers is 178. What is the sixth number?

Answers

Answer:

I'm sorry I'm not very good at math, sorry I couldn't help

Answer: 215.2

Step-by-step explanation:

Since the mean of six numbers is 184.2, this means that their total sum will be:

= 184.2 × 6

= 1105.2

Since the mean of five of the numbers is 178, their total sum will be:

= 178 × 5

= 890

Therefore, the sixth number will be:

= 1105.2 - 890

= 215.2

The sixth number is 215.2

Sixty students in the freshman class completed a survey about their favorite pet. The results are shown in the bar graph below. Based on the data,
which of the following statements is NOT true?
PETS
DOG
CAT
HAMSTER
FISH
TYPE OF PET
The number of freshman who prefer cats, hamsters, and fish is more than those who prefer dogs.
O Dogs were the preferred pet.
O One-fourth of the freshman surveyed prefer hamsters.
The number of freshman who prefer fish and hamsters is the same as those who prefer dogs.

Answers

The most preferred pets by students are Dogs. Therefore, the correct answers are B and C option.

A. It is given that, the number of Dogs are 28.

B. It is given that, the number of other Pets are

7+15+10 = 32

Thus, the number of other pets are greater than dogs.

C. The total number of pets are 60.

Here, the number of hamsters are

1/4 ×60 = 15

D. The number of hamsters and fish

= 15+10 = 25

The number of dogs are more than the number of fish and hamsters

Therefore, the correct answers are B and C option.

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One angle of an isosceles triangle measures 30°. Which other angles could be in that isosceles triangle

Answers

Answer:

the angles sum of a isosceles triangle is 180 degrees so you can have..

Step-by-step explanation:

75 and 75

100 and 50

uhhhh i think theres more but someone else can list them :)

To which rational number subset(s) do the following numbers belong?
1, 4, 7, 11, 14
A.
whole numbers and integers only
B.
whole numbers and natural numbers only
C.
natural numbers and integers only
D.
natural numbers, whole numbers, and integers

Answers

D.

D. natural numbers, whole numbers, and integers

Need help! I’m rlly struggling with this math. Can anyone explain how to do it?

Answers

Answer:  234

=======================================================

Explanation:

As you can probably guess, the first equation [tex]a_1 = 3[/tex] says that the first term is 3. The small '1' indicates "first term". So writing [tex]a_2[/tex] represents the second term, then [tex]a_3[/tex] is notation for the third term, and so on.

The second term is found by plugging in n = 2 into the second equation and computing to get...

[tex]a_n = 4*a_{n-1} + 2\\\\a_2 = 4*a_{2-1} + 2\\\\a_2 = 4*a_{1} + 2\\\\a_2 = 4*3 + 2\\\\a_2 = 12 + 2\\\\a_2 = 14\\\\[/tex]

The second term is 14. The steps above basically say: "to get the second term, we multiply the first term by 4, then add on 2"

In other words,

second term = 4*(first term) + 2

second term = 4*(3) + 2

second term = 12 + 2

second term = 14

-----

This can be extended to get the third term

third term = 4*(second term) + 2

third term = 4*(14) + 2

third term = 56 + 2

third term = 58

and finally,

fourth term = 4*(third term) + 2

fourth term = 4*(58) + 2

fourth term = 232 + 2

fourth term = 234

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